""ET TROJAN Observed Xehook Stealer Domain (nc1337 .online) in TLS SNI""

SID: 2051463

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2024_03_04, deployment Perimeter, malware_family Xehook, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_03_04

Reference:

  • md5

  • 1c3c3d869eb0804b24ed9bb2fdd8f3f6

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: established,to_server

Contents:

  • Value: "|16|"

  • Value: "|01|"

  • Value: "|00 00 0d|nc1337.online"

Within: 8

PCRE:

Special Options:

  • fast_pattern

source